The CGI environment variable REMOTE_USER is the closest I know of.   It won't directly provide the NT username, but if your intranet authentication is provided by your domain controller(s), it should be right unless users have multiple IDs.

Something like this should work: 

use CGI;
print $ENV{'REMOTE_USER'};

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    cheers,
    ybiC

In reply to RE: finding NT username (CGI environment var) by ybiC
in thread finding NT username by nop

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